Archive for April 2013

The Value of a Zone Start

There has been a back and forth going between Tyler Dellow of mc79hockey and David Johnson of about Zone Start % (ZS%) and it’s impact on play and, in particular, the impact of ZS% on Fenwick For % (FF%) or Corsi For % (CF%).  There discussion so far is here (Dellow), here (Johnson) and here (Dellow)..   I appreciate the work of both but I prefer to think of what is gained by an individual  zone start.  Bruce McCurdy is on the right track, in  […]

Total Hockey Rating (THoR) results through 04/14/13

The THoR page ( has the latest set of Even Strength ratings for the top 150 players.  I’ll give some commentary below.  Since MIT Sloan, we have added rink effects for each rink to the rink effects for shots and a score effect when the score has a differential of 2 or more.  The former aims to reduce bias in recording of RTSS events while the latter is indicative of changes of style of play according to the score. We got some good feedback at  […]